A plane carrying eight people and "12 tons of explosives" has crashed into a mountainside in Greece, missing houses by feet.
All eight crew members on board were killed in the crash, Greek and Serbian authorities have confirmed.
The aircraft came down in the city of Kavala and was operated by a Ukraine-based air carrier.
Explosions were heard for two hours following the crash, it has been claimed.
Residents reported seeing a fireball after the Antonov cargo plane crashed to the ground.
The Soviet-era An-12 plane had been heading from Serbia to Jordan, the Greek Civil Aviation authorities confirmed.
They said the pilot managed to alert authorities to an issue with one of the plane's engines minutes before they lost contact.
The authority said he was given the choice of landing at airports in either Thessaloniki or Kavala and selected near by Kavala, saying he had to make an emergency landing.
The plane crashed about 40km west of the airport as fire quickly broke out.
"We were hearing explosions until a few minutes ago," Filippos Anastassiadis, mayor of the municipality of Paggaio, said after the plane came down.
"I am about 300m from the site of the crash."
Video footage uploaded on ertnews.gr showed the plane in flames as it falls to the ground.
The fire service deployed 15 firefighters and seven engines to put out the blaze.
But they were initially prevented from reaching the area due to intense smoke which they feared was toxic.
A 400-metre-radius cordon remains in place.
The fire service, who have now been able to access the wreckage, remains on the scene.
"The air measurements at the moment have not shown anything but nonetheless instability in the field was observed," Northern Greece Fire Brigade Lieutenant General Marios Apostolidis told reporters.
"In other words, intense smoke and heat, as well as a white substance that we do not recognise, so a special armed forces team has to inform us what it is and whether we can enter the field."
Serbia's Defence Minister Nebojša Stefanovic told the media that the Antonov AN-12 was transporting almost 11 tonnes of Serbian-made weapons to Bangladesh.
Local woman Aimilia Tsaptanova watched the plane come down and said she was "amazed" it hadn't crashed into homes.
She told the BBC : "It was full of smoke, it had a noise I can't describe and it went over the mountain," she said. "It passed the mountain and turned and crashed into the fields.
"There were flames, we were scared. A lot of cars came, but they couldn't approach because there were continuous explosions."
